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Precision Aluminum Gas Cap with Anodizing and Secondary Machining
📊Specifications
- Material: Aluminum
- Process: CNC Machining + Anodizing + Secondary Machining
- Surface Finish: Anodized (Black)
- Tolerance: ±0.01mm
- Application: Fuel tank cap / automotive accessory
🔧Key Machining Points
- Requires precision CNC machining for thread and sealing surfaces.
- Anodizing is applied before secondary machining for enhanced surface durability.
- Secondary machining ensures critical dimensions remain accurate after coating.
- Consistent appearance and fit are both essential for functional and aesthetic purposes.
🔥 Key Challenges
- Maintaining dimensional accuracy after anodizing, which adds surface thickness.
- Ensuring thread precision and sealing performance after coating.
- Avoiding surface damage during secondary machining on anodized parts.
- Achieving both high-quality appearance and functional precision.
💡 Our Solution
- Controlled machining allowance before anodizing to compensate for coating thickness.
- Performed secondary precision machining on critical areas such as threads and sealing surfaces.
- Used protective handling to prevent scratches on anodized surfaces.
- Implemented strict inspection to ensure both dimensional accuracy and surface quality.
🏭 Application
This type of component is commonly used in automotive aftermarket parts, such as fuel tank caps, where both precision fit and visual quality are required.
🤝Why Choose HFJ for Similar Parts
- 10+ years experience in precision CNC machining
- Strong capability in anodizing coordination and post-processing control
- Experienced in secondary machining after surface treatment
- Reliable control of threads, sealing surfaces, and critical tolerances
- Full inspection before shipment
